130 PSYCHE [December 
28th, all the progeny of a single female; Accession No. 40152 (2 o’s, 17 Q’s). 
(19.) 2 S’s, 8 9’s reared in confinement from a puparium of Lucila sericata 
(Meigen), Oct. Ist, progeny of a single female; Accession No. 40158 (2 @’s, 8 2 +s) 
(20.) 3 0’s, 7 Q’s reared from a puparium of Phormia, Oct. 2nd; Accession No. 
40165 (8 O’s, 7 2’s). (21). 7 Q’s reared from a puparium (Phormia regina), 
Oct. 13th; Accession No. 40215 (7 2’s). (22). 38 o’s, 65 2’s reared in confine- 
ment Oct. 20th from 22 muscid puparia (Phormia etc.), all the progeny of a single 
female parasite; Accession No. 40232 (10 c’’s, 10 2’s). (23.) 21 Os, 57 2’s 
reared in confinement from 17 puparia of Phormia regina (Meigen), Oct. 20th, 
all the progeny of a single female; Accession No. 40233 (20 2’s). (24.) 12 c’s, 
126 Q’s reared Oct. 19th from puparia of Phormia regina (Meigen); Accession 
No. 40239 (12 &’s, 126 2’s). (25.) 1 parthenogenetic female reared Sep. 27th, 
from Phormia puparia; Accession No. 40260 (1 2). (26.) 17 &’s reared in 
confinement from a puparium of Phormia regina (Meigen), Oct. 15th, all the 
progeny of the unfertilized female of the preceding number; Accession No. 40261 
(17 &’s). (27.) 1 9, parthenogenetic parent of the next number, reared from 
Phormia puparia, Sep. 27th; Accession No. 40262 (1 2). (28.) 15 o's reared in 
confinement from a puparium of Phormia regina (Meigen) Oct. 15th, the progeny of 
the preceding number; Accession No. 40263 (15 o’s). (29.) 45 2’s + 24 reared 
from the same hosts as number 9 in preceding, Sep. 15th; Accession No. 41072 (45 2’s). 
(30.) 2 2’s in the Nason collection each labelled type, “Algonquin, Illinois, May 
11th, July 3rd, 1895”; 1%, 7 2’s, in the same collection wrongly determined as 
(Pteromalus) Meroporus calandrae (Howard);'! &’s, June 9th, 30th, July 3rd, Sep. 
5th, 10th, 17th, 1894-1895; co, Aug. 23rd, 1894. In addition, the following speci- 
mens were examined and discarded: 22 ¢'’s, 4 2’s emerging during late September, 
1908, from a single puparium of Sarcophaga sp. “‘e,” * reared from human excrement 
exposed for infestation. Altogether, we have critically examined five or six thousand 
specimens of this species. 
Biological Notes. 
During the late summer and early fall of 1908, Nasonia brevicornis Ashmead 
was exceedingly abundant in the insectary where the fly breeding-cages were located, 
but we did not have time or opportunity to give sufficient attention to it so that but 
few breeding experiments were undertaken. "These few experiments, however, 
1 This species is not represented in the Nason collection at all. (Cf. Nason, 1906.) 
2 See the previous footnote in regard to this designation. 
